Home / 8,427.20-12,638.04-3,497.12

Finding the Fourth Proportional to 8,427.20, 12,638.04 and 3,497.12

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Solution

The fourth proportional to 8,427.20, 12,638.04 and 3,497.12 is: 5,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.20 : 12,638.04 = 3,497.12 : x
  2. Step 2: Convert to fraction form
    8,427.20/12,638.04 = 3,497.12/x
  3. Step 3: Cross multiply
    8,427.20x = 12,638.04 × 3,497.12
  4. Step 4: Simplify right side
    8,427.20x = 44,196,742.44
  5. Step 5: Solve for x
    x = 44,196,742.44/8,427.20
  6. Step 6: Final answer
    x = 5,244.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.